87091420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2557}}^1$

素因数の和:2710

約数の個数: 48

約数和(自身を含む): 198541728

約数和(自身を除く): 111450308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2557, 2620, 3406, 5114, 6812, 8515, 10228, 12785, 17030, 25570, 33241, 34060, 51140, 66482, 132964, 166205, 332410, 334967, 664820, 669934, 1339868, 1674835, 3349670, 4354571, 6699340, 8709142, 17418284, 21772855, 43545710, 87091420]

約数ペア:

[(1, 87091420), (2, 43545710), (4, 21772855), (5, 17418284), (10, 8709142), (13, 6699340), (20, 4354571), (26, 3349670), (52, 1674835), (65, 1339868), (130, 669934), (131, 664820), (260, 334967), (262, 332410), (524, 166205), (655, 132964), (1310, 66482), (1703, 51140), (2557, 34060), (2620, 33241), (3406, 25570), (5114, 17030), (6812, 12785), (8515, 10228)]